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Table 4 — Motor Data
UNIT
558D
EVAPORATOR-FAN
MOTOR
MAXIMUM MAXIMUM
UNIT
VOLTAGE
MAXIMUM
CONTINUOUS OPERATING AMP
BHP* WATTS* DRAW
036
Std .34 440
208/230 2.9
460 1.4
575 1.4
Alt 1.00 1000
208/230 5.1
460 2.3
575 2.3
048
Std .75 850
208/230 3.7
460 1.9
575 1.9
Alt 1.00 1000
208/230 5.1
460 2.3
575 2.3
060
Std 1.20 1340
208/230 6.2
460 3.4
575 3.4
Alt
1.3 1750 208/230† 7.6
2.4 2120
208/230** 6.1
460 2.7
575 2.7
072 Std 2.40 2120
208/230 6.1
460 2.7
575 2.7
LEGEND
Bhp — Brake Horsepower
*Extensive motor and electrical testing on these units ensures that the full range of the motors can be
utilized with confidence. Using your fan motors up to the ratings shown in this table will not result in
nuisance tripping or premature motor failure. Unit warranty will not be affected.
†Single-Phase motor.
**3-phase motor.
Table 5 — 558D036 Air Delivery — Vertical Discharge Units (Standard Motor)
AIRFLOW
(Cfm)
STANDARD DIRECT DRIVE MOTOR
Low Speed High Speed
208 v 230, 460, 575 v 208 v 230, 460, 575 v
ESP Watts ESP Watts ESP Watts ESP Watts
900 0.67 253 0.68 277 0.69 307 0.69 363
1000 0.60 270 0.61 292 0.61 321 0.63 374
1100 0.55 287 0.56 307 0.57 335 0.58 385
1200 0.51 304 0.51 323 0.52 349 0.53 397
1300 0.45 321 0.46 338 0.46 364 0.47 408
1400 0.38 338 0.41 354 0.43 378 0.43 420
1500 0.34 355 0.36 369 0.38 392 0.39 431
LEGEND
ESP — External Static Pressure (in. wg)
NOTES:
1. Values include losses for filters, unit casing, and wet coils.
2. Extensive motor and electrical testing on these units ensures that the full range of the motor can be
utilized with confidence. Using your fan motors up to the wattage ratings shown will not result in
nuisance tripping or premature motor failure. Unit warranty will not be affected. For additional in-
formation on motor performance, refer to Table 4.
3. Use of a field-supplied motor may affect wire sizing. Contact your distributor to verify.
4. To convert watts to bhp:
watts input x motor efficiency
bhp =
746
Motor efficiency = .63
—20—